Baking a texture as image sequecne
Add a plane.
Connect your texture to emission brdf in the plane's material
Add a camera above 2 meters the plane and make output size to equal width and height with desired resolution 
Set it to orthographic and scale it to match the plane
Enable the emission pass and disable combined
In the compositor connect the emit pass to file output
Render as animation.


Repeat this for each kind of map if you have more than multiple maps.